/* =========================================================
   saurabhmukherjee.com — Independent Operating Advisor
   Palette: ink, ivory, restrained gold. Editorial, quiet, premium.
   ========================================================= */

:root{
  --ink:            #0b0f14;   /* near-black blue */
  --ink-2:          #121821;
  --ink-3:          #1b232e;
  --rule:           rgba(255,255,255,0.08);
  --rule-strong:    rgba(255,255,255,0.18);
  --ivory:          #f3efe7;
  --ivory-2:        #e9e3d5;
  --muted:          #a8afb8;
  --muted-2:        #7b8591;
  --gold:           #c9a96e;   /* restrained, not shiny */
  --gold-soft:      #d8bd86;
  --serif:          "Cormorant Garamond", "Georgia", "Times New Roman", serif;
  --sans:           "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --maxw:           1240px;
  --pad-x:          clamp(20px, 4vw, 56px);
  --radius:         2px;
  --easing:         cubic-bezier(.2,.7,.2,1);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html, body{ margin:0; padding:0; }
body{
  font-family: var(--sans);
  background: var(--ink);
  color: var(--ivory);
  font-size: 16.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-weight: 300;
}

img{ max-width:100%; display:block; }
a{ color: var(--ivory); text-decoration:none; transition: color .2s var(--easing); }
a:hover{ color: var(--gold-soft); }

::selection{ background: var(--gold); color: var(--ink); }

/* ---------- NAV ---------- */
.nav{
  position: sticky; top:0; z-index: 50;
  display:flex; align-items:center; justify-content:space-between;
  padding: 18px var(--pad-x);
  background: rgba(11,15,20,0.72);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.brand{ display:flex; align-items:center; gap:12px; font-family: var(--serif); }
.brand-mark{
  display:inline-grid; place-items:center;
  width:34px; height:34px; border-radius:3px;
  background: var(--ink-3); color: var(--gold);
  font-weight:700; letter-spacing: .04em;
  border:1px solid var(--rule-strong);
  font-family: var(--serif);
  font-size:15px;
}
.brand-name{ font-size: 18.5px; letter-spacing:.02em; font-weight:500; color: var(--ivory); }
.nav-links{ display:flex; align-items:center; gap: 28px; }
.nav-links a{
  font-size: 13.5px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted);
}
.nav-links a:hover{ color: var(--ivory); }
.cta-pill{
  padding: 9px 16px;
  border:1px solid var(--rule-strong);
  border-radius: 999px;
  color: var(--ivory) !important;
  transition: all .25s var(--easing);
}
.cta-pill:hover{ border-color: var(--gold); color: var(--gold) !important; }

.nav-toggle{
  display:none;
  background:transparent; border:none; cursor:pointer;
  width:36px; height:36px; padding:6px;
}
.nav-toggle span{ display:block; height:1.5px; background: var(--ivory); margin:6px 0; transition: all .25s var(--easing); }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero{
  position:relative;
  padding: clamp(70px, 10vw, 140px) var(--pad-x) clamp(80px, 10vw, 160px);
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(201,169,110,0.10), transparent 60%),
    radial-gradient(800px 600px at -10% 120%, rgba(201,169,110,0.05), transparent 60%),
    var(--ink);
  overflow:hidden;
}
.hero-rule{
  position:absolute; left: var(--pad-x); top: 28px;
  width: 64px; height: 1px; background: var(--gold);
}
.hero-grid{
  max-width: var(--maxw); margin:0 auto;
  display:grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: start;
}
.eyebrow{
  margin:0 0 22px;
  color: var(--gold);
  font-size: 12.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  font-weight:500;
}
h1.display{
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 5.6vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin: 0 0 28px;
  color: var(--ivory);
}
h1.display::first-line{ }
.lede{
  font-size: clamp(17px, 1.35vw, 20px);
  color: var(--ivory-2);
  max-width: 640px;
  margin: 0 0 36px;
  font-weight: 300;
  line-height: 1.55;
}
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom: 44px; }
.btn-primary{
  display:inline-flex; align-items:center; gap:10px;
  background: var(--gold); color: var(--ink) !important;
  padding: 14px 22px; border-radius: var(--radius);
  font-weight: 500; letter-spacing:.04em;
  border: 1px solid var(--gold);
  transition: all .25s var(--easing);
}
.btn-primary:hover{ background: var(--gold-soft); border-color: var(--gold-soft); transform: translateY(-1px); }
.btn-ghost{
  display:inline-flex; align-items:center; gap:10px;
  padding: 14px 22px; border-radius: var(--radius);
  border: 1px solid var(--rule-strong);
  color: var(--ivory) !important;
  letter-spacing:.04em;
  transition: all .25s var(--easing);
}
.btn-ghost:hover{ border-color: var(--gold); color: var(--gold) !important; }

.hero-proof{
  list-style:none; padding:0; margin:0;
  display:flex; flex-direction:column; gap: 8px;
  color: var(--muted);
  font-size: 14px;
}
.hero-proof li{
  padding-left: 18px; position:relative;
}
.hero-proof li::before{
  content:""; position:absolute; left:0; top:11px;
  width:8px; height:1px; background: var(--gold);
}

.hero-card{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  border:1px solid var(--rule);
  padding: 28px 28px 18px;
  border-radius: 3px;
  position: relative;
}
.hero-card::before{
  content:""; position:absolute; left:-1px; top:24px; width:2px; height:28px; background: var(--gold);
}
.card-row{
  display:grid; grid-template-columns: 120px 1fr;
  gap: 16px; padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.card-row:last-child{ border-bottom:none; }
.card-k{
  color: var(--muted-2);
  font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase;
}
.card-v{ color: var(--ivory-2); font-size: 14.5px; line-height: 1.5; }

/* ---------- SECTIONS ---------- */
.section{
  padding: clamp(80px, 10vw, 140px) var(--pad-x);
  max-width: 100%;
}
.section-tight{ padding-top: clamp(60px, 8vw, 110px); padding-bottom: clamp(60px, 8vw, 110px); }
.section-dark{
  background: var(--ink-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.section-head{
  max-width: var(--maxw); margin: 0 auto 54px;
}
.section-head .eyebrow{ margin-bottom: 18px; }
.h2{
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.005em;
  margin: 0 0 18px;
  color: var(--ivory);
  max-width: 20ch;
}
.section-sub{
  color: var(--muted);
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.65;
  margin: 0;
}

/* ---------- PRACTICE PROSE ---------- */
.prose-grid{
  max-width: var(--maxw); margin:0 auto;
  display:grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: start;
}
.prose p{
  color: var(--ivory-2);
  font-size: 17.5px;
  line-height: 1.75;
  margin: 0 0 20px;
  max-width: 62ch;
}
.prose strong{ color: var(--ivory); font-weight:500; }
.prose em{ color: var(--gold-soft); font-style: italic; }

.callout{
  border-left: 2px solid var(--gold);
  padding: 24px 28px;
  background: linear-gradient(180deg, rgba(201,169,110,0.04), transparent);
}
.callout-q{
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.4;
  color: var(--ivory);
  margin: 0;
  font-style: italic;
  font-weight: 400;
}

/* ---------- PILLARS (APPROACH) ---------- */
.pillars{
  max-width: var(--maxw); margin:0 auto;
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.pillar{
  background: var(--ink);
  padding: clamp(28px, 3.4vw, 48px);
  transition: background .35s var(--easing);
}
.pillar:hover{ background: var(--ink-2); }
.pillar-num{
  font-family: var(--serif);
  color: var(--gold);
  font-size: 26px;
  margin-bottom: 10px;
  letter-spacing: .04em;
}
.pillar h3{
  font-family: var(--serif);
  font-weight: 500;
  font-size: 26px;
  margin: 0 0 12px;
  color: var(--ivory);
  letter-spacing: -0.005em;
}
.pillar > p{
  color: var(--ivory-2);
  margin: 0 0 18px;
  line-height: 1.65;
  font-size: 15.5px;
}
.pillar ul{
  list-style:none; padding: 0; margin: 0;
  border-top: 1px solid var(--rule);
}
.pillar ul li{
  color: var(--muted);
  font-size: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  position: relative; padding-left: 18px;
}
.pillar ul li::before{
  content:"—"; position:absolute; left:0; color: var(--gold);
}
.pillar ul li:last-child{ border-bottom:none; }

/* ---------- ENGAGEMENT CARDS ---------- */
.cards{
  max-width: var(--maxw); margin:0 auto;
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.card{
  border: 1px solid var(--rule);
  padding: clamp(26px, 3vw, 38px);
  background: rgba(255,255,255,0.015);
  transition: all .3s var(--easing);
  position: relative;
  border-radius: 2px;
}
.card:hover{
  border-color: var(--rule-strong);
  background: rgba(255,255,255,0.03);
  transform: translateY(-2px);
}
.card-tag{
  color: var(--gold);
  font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase;
  margin: 0 0 14px;
}
.card h3{
  font-family: var(--serif);
  font-size: 28px; line-height: 1.18;
  margin: 0 0 14px;
  color: var(--ivory);
  font-weight: 500;
}
.card p{
  color: var(--ivory-2);
  line-height: 1.65;
  font-size: 15.5px;
  margin: 0 0 16px;
}
.card-meta{
  color: var(--muted-2) !important;
  font-size: 13px !important;
  border-top: 1px solid var(--rule);
  padding-top: 14px;
  margin: 0 !important;
}

/* ---------- METRICS ---------- */
.metrics{
  max-width: var(--maxw); margin: 0 auto 80px;
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.metric{
  background: var(--ink);
  padding: 28px 26px;
  min-height: 160px;
}
.metric-n{
  font-family: var(--serif);
  font-size: clamp(30px, 3vw, 42px);
  color: var(--gold);
  line-height: 1;
  margin-bottom: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.metric-l{
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
}

/* ---------- BIO ---------- */
.bio-grid{
  max-width: var(--maxw); margin:0 auto;
  display:grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.9fr);
  gap: clamp(30px, 5vw, 72px);
  padding-top: 60px;
  border-top: 1px solid var(--rule);
}
.h3{
  font-family: var(--serif);
  font-size: clamp(26px, 2.4vw, 34px);
  color: var(--ivory);
  margin: 0 0 20px;
  font-weight: 500;
}
.bio-copy p{
  color: var(--ivory-2);
  line-height: 1.75;
  font-size: 16.5px;
  margin: 0 0 16px;
}
.bio-copy strong{ color: var(--ivory); font-weight:500; }
.bio-aside h4{
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  margin: 0 0 14px;
  font-weight: 500;
}
.bio-aside ul{
  list-style:none; padding:0; margin: 0 0 28px;
}
.bio-aside li{
  color: var(--ivory-2);
  font-size: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--rule);
  line-height: 1.5;
}
.bio-aside li:last-child{ border-bottom:none; }

/* ---------- POSTS ---------- */
.posts{
  max-width: var(--maxw); margin:0 auto;
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.post{
  border: 1px solid var(--rule);
  padding: 32px 28px;
  background: var(--ink);
  border-radius: 2px;
  display:flex; flex-direction:column;
  transition: all .3s var(--easing);
}
.post:hover{ border-color: var(--rule-strong); transform: translateY(-2px); }
.post-meta{
  color: var(--gold);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin: 0 0 14px;
}
.post h3{
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1.22;
  color: var(--ivory);
  margin: 0 0 16px;
  font-weight: 500;
  letter-spacing: -0.005em;
}
.post p{
  color: var(--ivory-2);
  font-size: 15px;
  line-height: 1.65;
  margin: 0 0 24px;
  flex: 1;
}
.post-link{
  color: var(--gold) !important;
  font-size: 13.5px;
  letter-spacing: .04em;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
  font-weight: 500;
}
.post-link:hover{ color: var(--gold-soft) !important; }

/* ---------- ENGAGE ---------- */
.section-engage{
  background:
    radial-gradient(600px 400px at 50% -10%, rgba(201,169,110,0.10), transparent 60%),
    var(--ink);
  border-top: 1px solid var(--rule);
}
.engage-inner{
  max-width: 820px; margin: 0 auto;
  text-align: left;
}
.section-engage .h2{ max-width: 24ch; }
.engage-sub{
  color: var(--ivory-2);
  font-size: 17px;
  line-height: 1.65;
  max-width: 68ch;
  margin: 18px 0 40px;
}
.engage-form{
  border: 1px solid var(--rule-strong);
  background: rgba(255,255,255,0.02);
  padding: clamp(24px, 3.2vw, 40px);
  border-radius: 3px;
  display:grid; gap: 20px;
}
.form-row{
  display:grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.form-full{ display:block; }
.engage-form label{
  display:grid; gap: 8px;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}
.engage-form input,
.engage-form select,
.engage-form textarea{
  background: var(--ink-2);
  border: 1px solid var(--rule);
  color: var(--ivory);
  padding: 14px 16px;
  border-radius: 2px;
  font-family: var(--sans);
  font-size: 15px;
  letter-spacing: 0;
  text-transform: none;
  transition: border-color .25s var(--easing), background .25s var(--easing);
  font-weight: 400;
}
.engage-form select{ appearance: none; -webkit-appearance:none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: right 18px center, right 13px center; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; }
.engage-form input:focus,
.engage-form select:focus,
.engage-form textarea:focus{
  outline: none;
  border-color: var(--gold);
  background: var(--ink-3);
}
.engage-form textarea{ resize: vertical; min-height: 110px; }
.form-foot{
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  margin-top: 4px;
}
.form-note{
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  margin: 0;
  font-weight: 300;
}
.alt-contact{ margin-top: 24px; color: var(--muted); font-size: 14px; }
.alt-contact a{ color: var(--gold); border-bottom: 1px solid rgba(201,169,110,0.3); }
.alt-contact a:hover{ color: var(--gold-soft); border-bottom-color: var(--gold-soft); }

/* ---------- FOOTER ---------- */
.foot{
  background: var(--ink-2);
  border-top: 1px solid var(--rule);
  padding: 40px var(--pad-x);
}
.foot-inner{
  max-width: var(--maxw); margin:0 auto;
  display:flex; justify-content: space-between; align-items: start;
  gap: 40px; flex-wrap: wrap;
}
.foot-brand{
  display:flex; align-items:center; gap: 12px;
  font-family: var(--serif);
  font-size: 18px; color: var(--ivory);
  margin-bottom: 10px;
}
.foot-tag{ color: var(--muted); font-size: 13.5px; margin: 0; }
.foot-right{ text-align: right; color: var(--muted); font-size: 13.5px; }
.foot-right p{ margin: 0 0 6px; }
.foot-right a{ color: var(--gold); }

/* ---------- REVEAL ANIMATION ---------- */
.reveal{ opacity:0; transform: translateY(14px); transition: opacity .7s var(--easing), transform .7s var(--easing); }
.reveal.is-in{ opacity:1; transform: translateY(0); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .prose-grid{ grid-template-columns: 1fr; }
  .pillars{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr; }
  .metrics{ grid-template-columns: repeat(2, 1fr); }
  .bio-grid{ grid-template-columns: 1fr; }
  .posts{ grid-template-columns: 1fr; }
  .form-row{ grid-template-columns: 1fr; }
  .form-foot{ grid-template-columns: 1fr; text-align: left; }
}
@media (max-width: 760px){
  .nav-links{
    position: fixed; inset: 66px 0 auto 0;
    background: var(--ink);
    flex-direction: column; align-items: flex-start;
    padding: 24px var(--pad-x) 28px;
    gap: 18px;
    border-bottom: 1px solid var(--rule);
    transform: translateY(-12px); opacity: 0; pointer-events:none;
    transition: all .25s var(--easing);
  }
  .nav-links.is-open{ transform: translateY(0); opacity:1; pointer-events:auto; }
  .nav-toggle{ display:block; }
  .nav-links a{ font-size: 14px; }
  .cta-pill{ padding: 10px 18px; }
  .hero-proof{ font-size: 13.5px; }
  .foot-inner{ flex-direction: column; }
  .foot-right{ text-align: left; }
}
@media (max-width: 520px){
  .metrics{ grid-template-columns: 1fr; }
}

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .reveal{ opacity:1; transform:none; transition:none; }
  *{ transition: none !important; }
}